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Rev Age Author Path Log message Diff
3890 5574 d 9 h jermar /trunk/ Get rid of CONFIG_DEBUG_ALLREGS.  
3631 5656 d 8 h jermar /trunk/kernel/arch/ia32/src/ The IA-32 manual is very secretive about the fact that the SYSENTER instruction
disables interrupts (I found only one evidence of this in the instruction's
pseudo code). The sysenter_handler needs to reenable the interrupts in order to
preserve the preemptive nature of the kernel.
 
3485 5706 d 8 h jermar /trunk/ Support for SYSENTER on ia32.  
3274 5762 d 13 h jermar /trunk/ memcpy(), memmove() and similar functions return dst instead of src.
Fix all implementations, including those in assembly. ppc32 assembly
version didn't seem to be affected by this.
 
3043 5831 d 8 h jermar /trunk/kernel/arch/ia32/ Some inline functions in memstr.h seem to be of uncertain origin (ia32).
Replace either with built-in functions or with generic functions.
 
2784 5906 d 8 h jermar /trunk/kernel/arch/ Fortify ia32 and amd64 kernels against mallicious uspace applications that set
DF prior to entering the kernel. For AMD64 syscalls, we don't use the CLD
instruction, but make use of the SFMASK MSR instead. Simics works fine with
it, but QEMU seems to have a problem.
 
2613 6029 d 9 h jermar /trunk/ Support for six syscall arguments for ia32.  
2071 6333 d 8 h jermar /trunk/ (c) versus (C)  
1787 6523 d 10 h decky / move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot  
1288 6590 d 17 h jermar /kernel/trunk/ Complete implementation of copy_from_uspace() and copy_to_uspace()
for amd64 and ia32. Other architectures still compile and run,
but need to implement their own assembly-only memcpy(), memcpy_from_uspace(),
memcpy_to_uspace() and their failover parts. For these architectures
only dummy implementations are provided.
 
1278 6593 d 11 h palkovsky /kernel/trunk/ Changed interrupt_control to preemption_control.  
1212 6603 d 11 h palkovsky /kernel/trunk/ Added uspace call to enable/disable interrupts.  
1100 6636 d 8 h palkovsky /kernel/trunk/ Cleanup of spinlocks, now compiles both ia32 and amd64 with
and without DEBUG_SPINLOCKS. Made spinlocks inline.
Moved syscall_handler to generic (it was identical for ia32,amd64 & mips32).
Made slightly faster syscall for ia32.
Made better interrupt routines for ia32.
Allow not saving non-scratch registers during interrupt on ia32,amd64,mips32.
Aligned interrupt handlers on ia32,amd64, this should prevent problems
with different instruction lengths.
 
1021 6641 d 11 h jermar /kernel/trunk/ Hopefully final version of interrupt handlers for amd64 and ia32.
amd64 has been especially tricky to debug.
Error code detection is now done in compile time.
 
1016 6641 d 14 h jermar /kernel/trunk/arch/ia32/src/ Improved ia32 interrupt handlers.  
1008 6641 d 16 h jermar /kernel/trunk/ Fix bug in ia32 interrupt handlers.
Handlers for interrupts greater than 31 wrapped the shift around and thus failed to correctly identify
the need to emulate error word.
 
958 6643 d 9 h jermar /kernel/trunk/ Nicer ia32 interrupt handlers and structures holding interrupted context data.
Unify the name holding interrupted context data on all architectures to be istate.
 
952 6643 d 13 h jermar /kernel/trunk/ Support for loading segments containing .bss section.  
717 6700 d 10 h decky /kernel/trunk/ remove obsolete in-kernel userspace code
remove CONFIG_USERSPACE switch, uspace support is configured at run-time
 
576 6737 d 4 h palkovsky /kernel/trunk/ Changed ia32 & amd64 to use exc_register instead of trap_register.

Fixed dependency list building. I hope you all have 'makedepend' installed,
if you don't it's time to install it, as CC -M builds the dependency
list without directory names..and it just does not work.
 
534 6742 d 9 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel again.  
532 6742 d 9 h jermar / Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch.  
501 6754 d 14 h jermar / Rename HelenOS/SPARTAN to HelenOS/kernel.  
392 6802 d 9 h bondari /SPARTAN/trunk/arch/ia32/ Last inline functions for IA-32  
390 6803 d 7 h bondari /SPARTAN/trunk/arch/ia32/ ia-32 memcmp inline  
381 6808 d 6 h jermar /SPARTAN/trunk/ Make cross-compiler the default compiler on IA-32.
For native compilations, use ./build.ia32 native.

Small changes elsewhere.
 
358 6819 d 7 h bondari /SPARTAN/trunk/ built-in memcpy is not used anymore on IA-32.
IA-32 memcpy is now fast and inline.
 
357 6819 d 9 h bondari /SPARTAN/trunk/arch/ia32/src/ small fix  
356 6819 d 9 h bondari /SPARTAN/trunk/arch/ia32/ Get from port functions are now inline  
353 6819 d 20 h bondari /SPARTAN/trunk/arch/ia32/ Outb, outw, outl are now inline functions  
352 6820 d 7 h bondari /SPARTAN/trunk/arch/ia32/ outb inline function  
323 6828 d 17 h jermar /SPARTAN/trunk/ Add comments for new floating point modifiers to print.c.
Remove left-over comments from AMD64 and IA-32 page.c.
Coding style clean up.
 
316 6830 d 20 h jermar /SPARTAN/trunk/arch/ia32/src/ Optimize assembler code according to the knoweledge of IA-32 ABI.  
205 6837 d 19 h jermar /SPARTAN/trunk/ Get rid of memcopy().
All we now have is memcpy() and _memcpy().
memcpy() is defined to be builtin.
Where not applicable, architectures must implement memcpy() code or call slowish _memcopy().
 
198 6838 d 7 h jermar /SPARTAN/trunk/ Switch order of 'src' and 'dst' arguments in some left-over uses of memcopy.

Cleanup.
 
196 6838 d 9 h vana /SPARTAN/trunk/arch/ia32/src/ ASM version of memcopy repaired on ia32  
185 6838 d 17 h decky /SPARTAN/trunk/arch/ OpenFirmware support  
168 6848 d 7 h jermar /SPARTAN/trunk/ Add type cast to __address in vm_create().
This seems to fix the problem with userspace.
Looks like KA2PA() returned wrong address when applied on pte_t *.

Uncomment panic() in gp_fault().
Get rid of cli and sti in userspace code.
 
142 6878 d 16 h vana /SPARTAN/trunk/arch/ia32/src/ Typing error fixed  
141 6878 d 16 h vana /SPARTAN/trunk/ Clear IOPL on start of system on all CPUs and clear NT before all irets.